OvmfPkg/Library/PxeBcPcdProducerLib/PxeBcPcd.c

   1 /** @file
   2   Configure some PCDs dynamically for
   3   "NetworkPkg/UefiPxeBcDxe/UefiPxeBcDxe.inf", from QEMU's fw_cfg.
   4
   5   Copyright (C) 2020, Red Hat, Inc.
   6
   7   SPDX-License-Identifier: BSD-2-Clause-Patent
   8 **/
   9
  10 #include <Library/PcdLib.h>
  11 #include <Library/QemuFwCfgSimpleParserLib.h>
  12
  13 RETURN_STATUS
  14 EFIAPI
  15 SetPxeBcPcds (
  16   VOID
  17   )
  18 {
  19   BOOLEAN       FwCfgBool;
  20   RETURN_STATUS PcdStatus;
  21
  22   if (!RETURN_ERROR (QemuFwCfgParseBool ("opt/org.tianocore/IPv4PXESupport",
  23                        &FwCfgBool))) {
  24     PcdStatus = PcdSet8S (PcdIPv4PXESupport, FwCfgBool);
  25     if (RETURN_ERROR (PcdStatus)) {
  26       return PcdStatus;
  27     }
  28   }
  29
  30   if (!RETURN_ERROR (QemuFwCfgParseBool ("opt/org.tianocore/IPv6PXESupport",
  31                        &FwCfgBool))) {
  32     PcdStatus = PcdSet8S (PcdIPv6PXESupport, FwCfgBool);
  33     if (RETURN_ERROR (PcdStatus)) {
  34       return PcdStatus;
  35     }
  36   }
  37
  38   return RETURN_SUCCESS;
  39 }